You must remember the period where various electronic devices, from phones to radios, were available in transparent cases. You may have found them utterly cool. Yet the simple fact that you can't find these things on the shelves anymore (except for do-it-yourself PC cases) means the crowd doesn't find them nearly that cool. While you may not see the link yet, this is exactly why the Linux desktop will never be popular.

That's not entirely true. The poprietory market favors closed source software and Windows is closed. When there are comprerable tools for deigning games that are open source then people will start using Linux. Just having a raw engine or a half baked Blender doesnt cut it. Blender has recently caught up although you do need more generic NON-GEEK-FANBOY things like keymapping, not just strict ergonomics. Bey0ond just the idealistic way to do things into the generic.
Also preinstalling and marketing are part of it as well to get mnore people involved to do these things
It's basically Linux people getting off their asses and creating these tools, not a fear of technology.

Ah, that's the problem, every potential Linux user out there really needed to design games using some simplistic drag and drop idiot oriented interface, this is what we've been missing all this time!

Oh, btw, WTF?!!!?!

What the hell have blender and the availability of mythical game design tools got to do with Businesses using Linux desktop to run their Office and productivity suites? Even if games were the most important consideration, you DO NOT need to design a game entirely on a Linux machine for it to possible to port that game to the platform, if it were so all of the Nintendo DS titles would have been designed and coded on said platform!